Michael D'estries, Treehugger, See More Jamie Carter, Forbes, This is different from the dramatic transformation of the lunar surface that occurs during a full lunar eclipse when the moon travels through the inner part of the Earth’s shadow (known as the umbra) and turns a ruddy red. Stefanie Waldek, Travel + Leisure, The explanation is that the Moon will only just miss moving through the Earth’s umbra – its darker, central shadow. 2021 This will be a partial lunar eclipse, when part of the moon will enter the umbra, or the Earth's full shadow. 2023 This is made up of the time when the Moon hits the pen umbra and umbra. 2010 The partial outer shadow is called the pen umbra the full, dark shadow is the umbra.
Andrew Moseman, Discover Magazine, 20 Dec. Julia Jacobo, ABC News, In other words, things really gets started when the Moon moves into the umbra. 2017 The partial eclipse, when the moon appears to move into the umbra and part of the moon inside the umbra will appear very dark, will occur just before 10:30 p.m. Michael E Bakich, Discover Magazine, 7 Aug. Recent Examples on the Web Only where the moon blocks all the light from the sun - in its dark inner shadow called the umbra - can people on Earth see a total solar eclipse.
